NEW
Font size
S
M
L
XL
WorksheetsDNA, RNA Structure and Replication
Total questions: 15
Worksheet time: 23mins
Name
Class
Date
1.
Which shows the correct complementary DNA strand of ATG?
a)
ATG
b)
TAC
c)
TAG
d)
CGC
2.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
3.
The enzyme that unzips the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
4.
DNA codes for...
a)
cholesterol
b)
proteins
c)
fatty acids
d)
a sandwich
5.
Which enzyme is responsible for adding nucleotides?
a)
Topoisomerase
b)
DNA Polymerase
c)
Ligase
d)
Primase
6.
The sides of the DNA “Ladder” are made up of:
a)
Alternating phosphates and sugars
b)
Nitrogen bases
c)
Hydrogen bonds
d)
Protein chains
7.
This image shows that DNA Replication is _______.
a)
Conservative
b)
Semiconservative
c)
Dispersive
d)
Spontaneous
8.
Name this structure
a)
double helix
b)
nucleotide
c)
amino acid
d)
protein
9.
One difference between DNA and RNA is that....
a)
Only RNA has the base Uracil
b)
only RNA contains the base Thymine
c)
only RNA contains the base Cytocine
d)
only RNA contained the base Guanine
10.
This nucleic acid is single stranded
a)
DNA
b)
RNA
c)
Both
11.
In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of
a)
cytosine
b)
guanine
c)
thymine
d)
uracil
12.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
13.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
14.
What type of sugar is in DNA?
a)
sucrose
b)
lactose
c)
ribose
d)
deoxyribose
15.
30% Adenine will have how much Thymine and how much Guanine?
a)
Thymine: 20% Guanine: 50%
b)
Thymine: 25% Guanine: 25%
c)
Thymine: 30% Guanine: 20%
Reset
